-/*
- * Just check for SPLICE_F_MOVE, if that isn't there, assume the others
- * aren't either.
- */
-#ifndef SPLICE_F_MOVE
-#define SPLICE_F_MOVE (0x01) /* move pages instead of copying */
-#define SPLICE_F_NONBLOCK (0x02) /* don't block on the pipe splicing (but */
- /* we may still block on the fd we splice */
- /* from/to, of course */
-#define SPLICE_F_MORE (0x04) /* expect more data */
-#define SPLICE_F_GIFT (0x08) /* pages passed in are a gift */
-
-static inline int splice(int fdin, loff_t *off_in, int fdout, loff_t *off_out,
- size_t len, unsigned int flags)
+enum {
+ IOPRIO_CLASS_NONE,
+ IOPRIO_CLASS_RT,
+ IOPRIO_CLASS_BE,
+ IOPRIO_CLASS_IDLE,
+};
+
+enum {
+ IOPRIO_WHO_PROCESS = 1,
+ IOPRIO_WHO_PGRP,
+ IOPRIO_WHO_USER,
+};
+
+#define IOPRIO_BITS 16
+#define IOPRIO_CLASS_SHIFT 13
+
+#define IOPRIO_MIN_PRIO 0 /* highest priority */
+#define IOPRIO_MAX_PRIO 7 /* lowest priority */
+
+#define IOPRIO_MIN_PRIO_CLASS 0
+#define IOPRIO_MAX_PRIO_CLASS 3
+
+static inline int ioprio_value(int ioprio_class, int ioprio)